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Write an expression for potential $V( \overrightarrow{r})$ at a point due to two point charges $q_1$ and $q_2$ at $\overrightarrow{r_1} $and $\overrightarrow{r_2}$ respectively.

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$V(\overrightarrow r ) =\large\frac{1}{4 \pi \in_0} \frac{q_1}{\bigg |\overrightarrow{r} - \overrightarrow{r_1} \bigg|}+\frac{1}{4 \pi \in_0} \frac{q_2}{\bigg|\overrightarrow{r} - \overrightarrow{r_2}\bigg|}$
answered Jun 24, 2014 by meena.p

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